code: def test_argsort_matches_array(self, simple_index):
      idx = simple_index
      idx = idx.insert(1, pd.NaT)
  
      result = idx.argsort()
      expected = idx._data.argsort()
      tm.assert_numpy_array_equal(result, expected)
  
file_path: pandas/pandas/tests/indexes/test_datetimelike.py
imports: import numpy
  import pytest
  import pandas
  import pandas._testing
label_desc: Use image node_id 3 for calling the TestDatetimeLike obj's underlying member method code with example usage: obj.test_argsort_matches_array(simple_index) without return types